Invention Grant
- Patent Title: Systems and methods for delayed fluid recovery
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Application No.: US16252243Application Date: 2019-01-18
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Publication No.: US11629866B2Publication Date: 2023-04-18
- Inventor: Norman J. Blanton , Stephen C. Wilson , Paul S. Willmus
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Auburn Hills
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Auburn Hills
- Agency: Fletcher Yoder, P.C.
- Main IPC: F24F11/84
- IPC: F24F11/84 ; F24F3/153 ; F24F11/61

Abstract:
A heating, ventilation, and/or air conditioning (HVAC) system includes a cooling circuit, a reheat circuit, a recovery circuit, and a control system. The cooling circuit includes a condenser, a compressor, an evaporator, and a three-way valve, and the HVAC system is configured to circulate refrigerant through the cooling circuit in a cooling operating mode. The reheat circuit includes a reheat heat exchanger, the compressor, the evaporator, and the three-way valve, and the HVAC system is configured to circulate refrigerant through the reheat circuit in a reheat operating mode. The recovery circuit extends between the condenser and the compressor and includes a recovery valve. The control system is configured to send a first signal to the three-way valve to switch the HVAC system between the cooling operating mode and the reheat operating mode and a second signal to the recovery valve to recover refrigerant from the cooling circuit at a subsequent time based on the first signal.
Public/Granted literature
- US20200208851A1 SYSTEMS AND METHODS FOR DELAYED FLUID RECOVERY Public/Granted day:2020-07-02
Information query